27886932289 has 2 divisors, whose sum is σ = 27886932290. Its totient is φ = 27886932288.

The previous prime is 27886932257. The next prime is 27886932331. The reversal of 27886932289 is 98223968872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27883322289 + 3610000 = 166983^2 + 1900^2 .

It is a cyclic number.

It is not a de Polignac number, because 27886932289 - 2⁵ = 27886932257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27886932289.

It is not a weakly prime, because it can be changed into another prime (27886932589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13943466144 + 13943466145.

It is an arithmetic number, because the mean of its divisors is an integer number (13943466145).

Almost surely, 2^27886932289 is an apocalyptic number.

It is an amenable number.

27886932289 is a deficient number, since it is larger than the sum of its proper divisors (1).

27886932289 is an equidigital number, since it uses as much as digits as its factorization.

27886932289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41803776, while the sum is 64.

The spelling of 27886932289 in words is "twenty-seven billion, eight hundred eighty-six million, nine hundred thirty-two thousand, two hundred eighty-nine".